Automatic horn.



G. F. LONG.

AUTOMATIC HORN.

APPLICATION FILED 0Ec.29. 1910.

1,232,579, Patented July 10', 1917.

Z I Z y. y I? ".119 .r i g rrnn srn GEORGE r. LoNG, or NEW YORK, N. Y., ASSIGNOR TO eorrrnrnn PIEL, or NEW YORK, N. Y.

AUTOMATIC HORN.

Specificationof Letters Patent.

Patented July 10, 1917.

Application filed December 29, 1910. Serial No. 599,990.

To all whom it may concern:

Be it known that I, Gnonon F. LONG, a citizen of the United States, residing in the borough of Manhattan of the city of New York, in the State of New York, have in vented certain new and useful Improvements in Automatic Horns, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

This invention relates to horns which are especially adapted to use under conditions and circumstances where it is desired to give a warning sound or signal, and the invention consists in the new and novel features of construction and combinations of parts hereinafter set forth and claimed.

In the accompanying drawings:

Figure 1 is a side elevation of a horn partly in section embodying my invention.

Fig. 2 represents a sectional view on the line 22 of Fig. 1.

Fig. 3 represents a sectional view on the line 33 of Fig. 1.

Figs. 4: and 5 are detail front and end views respectively of the actuating disk.

The bell 1 of the horn is secured to a suitable casing 2 by any suitable means as the bolts 3. A diaphragm 4 of thin, resilient metal is secured .preferably between the horn and the casing, so that the same will be under tension. Said diaphragm is preferably provided with a series of annular grooves or corrugations 5. An actuating member 6 is secured to the diaphragm, preferably centrally thereof, which comprises a projection 7 that extends a suitable distance into the casing from the face of the diaphragm.

A disk 8 is arranged to contact with said actuating member and is secured to a shaft 9 rotatably mounted in bearings provided by a bracket 10 secured to the casing. Said disk has a plurality of projections thereon which are preferably formed by providing recesses 11 in the face of the disk and inserting small cylinders or rods 12 of hardened metal in said recesses, so that segments of the rods or cylinders will project slightly beyond the face of the disk and thus cause vibrations of the diaphragm when they engage with the actuating member 6. Said cylinders are preferably rotatable in the re cesses thus making a rolling contact.

A pinion 14: is keyed to the shaft 9 which is in mesh with a gear 15 upon a parallel stub shaft 16 which is also mounted in the casing. Said gear is loosely mounted on the shaft and is provided with a pawl 17 which normally engages with teeth of a ratchet 18 keyed to the said shaft 16. A pinion 19 also keyed to the shaft 16 meshes with a segmental rack 20 secured to or formed integral with annrm 21 which is pivoted as at 22 to the casing. Said arm is provided with a pin 24 seating in an opening or slot 25 provided in the end of an actuating bar or rod 26 that extends outside of the casing and is provided at its free end with a suitable knob 27. Said actuating bar is norinally held in its raised position by any suitable means as a spring 28.

When the actuating bar is pressed downward against the action of the spring, the rack 20 is actuated, causing the pinion 19 to rotate, which movement is communicated through the gear 15 to the disk 8 by means of the pawl 17 which is normally held in engagement with the ratchet 18 by any suitable means as the spring 29. When the pressure upon the actuating bar is released, how ever, it will be returned to its normal raised position by the spring 28 without rotating the disk, as the pawl permits the pinion 19 to rotate in one direction independently of the gear 15.

The rotation of the disk will cause the rods or cylinders 12 to engage with the actuating member 6, thus producing vibration of the diaphragm and emitting sound.

By means of this construction a very rapid rotation of the disk can be produced with comparatively slight movement of the actuating bar, and owing to the arrangement of the gears, a number of complete revolutions of the disk will be made. The rotatable cylinders or rods which are inserted in the face of the disk may be of any desired material of sufficient hardness to prevent wear, it being obvious that the character of the sound can be readily controlled by the diameter of said inserts and the extent to which they project above the face of the disk.

I claim as my invention:

1. In a horn the combination with a diaphragm having an actuating member secured thereto, of a rotatable disk having a plurality of cylindrical recesses and cylinders mounted in said recesses for free rotary movement about their own axes and pro jecting beyond the plane of the face of the disk and adapted to engage with said actuating member.

2. In a horn the combination with a vibrating diaphragm having an actuating member secured thereto, of a disk having rotatably mounted cylinders projecting therefrom adapted to engage with said actuating member, a pinion operatively connected with said disk, a segmental rack meshing with said pinion and an actuating bar pivoted to said rack.

3. A horn comprising a vibrating diaphragm having an actuating member se cured thereto, a rotatable disk having inde pendently rotatable inserts therein projecting beyond the face of .the disk and adapted to engage with said actuating member a gear operatively connected with said disk to rotate the same, a ratchet and driving p1n1on, a pawl mountedon said gear engaging said ratchet and permitting independent described, a diaphragm, a plurality of cylindrical strikers, a rotatable carrier for said strikers, an intermediate blow transmitter arranged between said strikers and said diaphragm, said strikers being free to rotate about their own axes respectively.

5. In a device of the class described, a diaphragm actuating mechanism including a rotor provided with means for periodically engaging the diaphragm, a multiplying gear train leading to said rotor, a pawl and ratchet connection between the first and second member of said gear train, a lever pivoted intermediate its length, one arm of said lever constituting a segmental rack operatively connected to the first member of the gear train to oscillate the same, a manually actuated bar pivoted to the other arm of the lever and means for guiding said bar for longitudinal movement in a line transverse tothe normal position of the lever.

This specification witnessed this 23d day ofDecember, A. D., 1910. V

, GEORGE F.-LONG.

Signed in the presence of AMBRosn L. OSHEA, N. A. SMITH.

copies a; this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washingtonj). Q. 

